DW45 Air Circuit Breaker is suitable for the circuit of AC 50Hz/60Hz with rated service voltage 400V, 690V and rated service current up to 6300A.It is mainly used to distribute electric energy and protect circuits and electric equipment against over-load, under-voltage, short-circuit and single-phase earthing fault.
DW45 series air circuit breaker is suitable for the circuit of AC 50Hz/60Hz with rated service voltage 400V, 690V and rated service current up to6300A.It is mainly used to distribute electric energy and protect circuits and electric equipment against over-load, under-voltage, short-circuit and single-phase earthing fault.
Can improve the reliability of power supply and avoid unnecessary power failure. DW45 Air Circuit Breaker (ACB) KW1-3200/4P is applicable for power stations, factories, mines (for 690V) and modern high-buildings, especially for the distribution system of intelligentized building.
. Rated operational voltage of the breaker is AC400/415/690V, with the rated current ranges from 630A to 5000A
. Compact design with fixed and withdrawerable type
. Standar: IEC/EC 60947-2 /GB14048.2
. Poles of number: 3/4
. Breaking capacity under 415V
KW1-2000 630A, 800A, 1000A, 1250A, 1600A, 2000A
KW1-3200 2000A, 2500A, 2900A, 3200A
KW1-4000 3600A, 4000A
KW1-5000 4000A, 5000A
model |
KW1-2000 |
KW1-3200 |
KW1-4000 |
KW1-5000 |
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Frame size rated current In(A) |
2000 |
3200 |
4000 |
5000 |
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Rated current In(A) |
630 800 1000 1250 1600 2000 |
2000 2500 2900 |
3600 4000 |
4000 5000 |
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Rated voltage Ue(V) |
AC 400 ,690 50HZ |
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Rated insulating voltage Ui(V) |
AC 800 50HZ |
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Poles of number |
3,4 |
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Rated current at N-pole In(A) |
50%In, 100%In |
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Icu(kA) |
AC 400V |
80 |
100 |
100 |
120 |
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AC 690V |
50 |
65 |
65 |
85 |
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Ics(kA) |
AC 400V |
50 |
65 |
80 |
100 |
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AC 690V |
40 |
50 |
65 |
75 |
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Icw(kA) |
AC 400V |
50 |
65 |
80 |
85 |
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AC690V |
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Icm(kA) |
AC 400V |
176 |
220 |
220 |
264 |
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AC690V |
105 |
143 |
165 |
165 |
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Inherent making & breaking time |
25-30ms |
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Operating performances |
Electric life (under AC415V) |
AC400V |
500(1000) |
500(1000) |
500(1000) |
500(1000) |
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AC690V |
500(1000) |
500(1000) |
500(1000) |
500(1000) |
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Mechanical life |
Maintainable-free |
2500 |
2500 |
2500 |
2500 |
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Maintainable |
10000 |
10000 |
10000 |
10000 |
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Mounting mode |
Fixed. Withdrawable |
Fixed. Withdrawable |
Fixed. Withdrawable |
Fixed. Withdrawable |